Proposed Change: Correct a flaw in a scaling algorithm that can cause displayed scores to move very rapidly within a particular window, despite only modest moves in the underlying value. Affects many scales to different degrees. This beta is not comprehensive and previews only the most significant changes. This is a monotonic change; i.e. it will alter scores but not ranks.
This is a big change in that it will affect many nations, many different scales, and can move values quite significantly. However, it doesn't change ranks, so if you're 3,524th in the world for something today, you still will be afterward.
I've added charts to the "Sample Test" pages of each beta, to help visualize the proposed changes.